Dense membranes precoated with aluminium tridecamer (Al 13) for water treatment

Justin Chun-Te Lin; An-Chi Cheng; Ya-Fan Lin; Duu-Jong Lee; Wan-Mu Guo

doi:10.1016/j.desal.2011.11.012

Dense membranes precoated with aluminium tridecamer (Al ₁₃) for water treatment

Justin Chun-Te Lin, An-Chi Cheng, Ya-Fan Lin, Duu-Jong Lee, Wan-Mu Guo

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

11 Citations (Scopus)

Abstract

Coagulation or dense membrane processes, i.e. nanofiltration (NF) and reverse osmosis (RO), are intensively used in surface water treatment. Conventional coagulation process is used to remove colloids and particles, while the dense membrane processes are used to remove trace dissolved contaminants. This paper applied an in-situ surface modification technique by directly depositing the laboratory synthesized coagulant, aluminium tridecamer ([AlO ₄Al ₁₂(OH) ₂₄(H ₂O) ₁₂]Cl ₇, Al ₁₃), as a coating solution for two NF and one RO membranes. The dense membranes can completely reject the Al ₁₃ compounds; while the coated membranes were effectively removing humic acid and 17β-estradiol (E2) from waters. The coated Al ₁₃ layer revealed structural stability subjected to salt (NaCl), acid (pH 5) and base (pH 9) challenges. © 2011 Elsevier B.V..

Original language	English
Pages (from-to)	349-352
Journal	Desalination
Volume	284
DOIs	https://doi.org/10.1016/j.desal.2011.11.012
Publication status	Published - 4 Jan 2012
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation

Research Keywords

Al 13
In situ coating
NF membrane
Rejection
RO membranes

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10.1016/j.desal.2011.11.012

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Cite this

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abstract = "Coagulation or dense membrane processes, i.e. nanofiltration (NF) and reverse osmosis (RO), are intensively used in surface water treatment. Conventional coagulation process is used to remove colloids and particles, while the dense membrane processes are used to remove trace dissolved contaminants. This paper applied an in-situ surface modification technique by directly depositing the laboratory synthesized coagulant, aluminium tridecamer ([AlO 4Al 12(OH) 24(H 2O) 12 ]Cl 7, Al 13), as a coating solution for two NF and one RO membranes. The dense membranes can completely reject the Al 13 compounds; while the coated membranes were effectively removing humic acid and 17β-estradiol (E2) from waters. The coated Al 13 layer revealed structural stability subjected to salt (NaCl), acid (pH 5) and base (pH 9) challenges. {\textcopyright} 2011 Elsevier B.V..",

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AU - Lin, Justin Chun-Te

AU - Cheng, An-Chi

AU - Lin, Ya-Fan

AU - Lee, Duu-Jong

AU - Guo, Wan-Mu

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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N2 - Coagulation or dense membrane processes, i.e. nanofiltration (NF) and reverse osmosis (RO), are intensively used in surface water treatment. Conventional coagulation process is used to remove colloids and particles, while the dense membrane processes are used to remove trace dissolved contaminants. This paper applied an in-situ surface modification technique by directly depositing the laboratory synthesized coagulant, aluminium tridecamer ([AlO 4Al 12(OH) 24(H 2O) 12 ]Cl 7, Al 13), as a coating solution for two NF and one RO membranes. The dense membranes can completely reject the Al 13 compounds; while the coated membranes were effectively removing humic acid and 17β-estradiol (E2) from waters. The coated Al 13 layer revealed structural stability subjected to salt (NaCl), acid (pH 5) and base (pH 9) challenges. © 2011 Elsevier B.V..

AB - Coagulation or dense membrane processes, i.e. nanofiltration (NF) and reverse osmosis (RO), are intensively used in surface water treatment. Conventional coagulation process is used to remove colloids and particles, while the dense membrane processes are used to remove trace dissolved contaminants. This paper applied an in-situ surface modification technique by directly depositing the laboratory synthesized coagulant, aluminium tridecamer ([AlO 4Al 12(OH) 24(H 2O) 12 ]Cl 7, Al 13), as a coating solution for two NF and one RO membranes. The dense membranes can completely reject the Al 13 compounds; while the coated membranes were effectively removing humic acid and 17β-estradiol (E2) from waters. The coated Al 13 layer revealed structural stability subjected to salt (NaCl), acid (pH 5) and base (pH 9) challenges. © 2011 Elsevier B.V..

KW - Al 13

KW - In situ coating

KW - NF membrane

KW - Rejection

KW - RO membranes

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